DigitalPersona 4500 fingerprint comparison and authentication in javascript

Question

I am using

• react as front end
• nodejs express as backend
• DigitalPersona 4500 as fingerprint scanner.

I used following git repository, created index.html and using iframes imported the html file to detect the fingerprint in my react app. Also I downloaded digital persona lite client.

https://github.com/shanxp/fingerprint-digital-persona-u-are-u-4500-web-example

Now the fingerprint detection works. I can get the base64 version of the fingerprint scan. Now I need to authenticate and identify the fingerprints. Could not find a way. I tried creating a bridging application using python too. I still could not figure out a solution.